Cab torsion preventing structure of truck

ABSTRACT

A cap torsion preventing structure of truck wherein a reinforcing material is installed to form a closed space at a connected area between a wheel housing and a head lamp support panel to increase strength relative to load and torsional moment applied to the wheel housing, and to dispense with thicker wheel housing and head lamp support panel, preventing cracks at the connected area, the structure comprising the reinforcing material, one side of which being combined to an inner surface of the wheel housing and the other side being coupled to the head lamp support panel, thereby forming a closed space at a connected area between the head lamp support panel and the wheel housing for dispersion of load.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a torsion preventing structure,and more particularly to a cap torsion preventing structure of truckadapted to improve resistant strength of head lamp support panel andwheel housing comprising the cap of truck.

[0003] 1. Description of the Prior Art

[0004] Generally, a truck consists of a cap comprising a driver's seatand a cargo box for loading cargoes.

[0005] The cap and the cargo box are accommodated to a frame (notshown), where engine, transmission, suspension and the like are allsupported to the frame. A cap 52 is mounted on a floor 51 sitting on aframe 50 as illustrated in FIG. 3 and the cap 52 includes a wheelhousing 53, a head lamp support panel 54 and the like.

[0006] The wheel housing 53 and the head lamp support panel 54 arewelded, and as shown in FIG. 4 for illustrating that the head lampsupport panel 54 and the wheel housing 53 are connected by welding whilea bumper is removed from “A” section of FIG. 3, the head lamp supportpanel 54 is welded thereunder by a longitudinal end of flange 55 whilethe head lamp support panel 54 is connected at both s des thereof by afront end cross member 56.

[0007] At this location, the head lamp support panel 54 and the frontend cross member 56 are formed in plate shape as they do not receiveheavy load, however, the wheel housing 53 is formed like “∩” incross-sectional shape to improve strength because the housing 53receives the shock directly from load of the cap 52 and roadbed.

[0008] Of course, the front end cross member 56, the head lamp supportpanel 54 and the wheel housing 53 are welded while they are mutuallyoverlapped, such that the load and torsional moment applied to theconnected region from the wheel housing 53 are dispersed and absorbed.

[0009] However, there is a problem in that a simple constructionconnecting the wheel housing and the head lamp support panel cannotfully absorb and disperse load or torsional moment applied to the wheelhousing through tires and axis from the load of cap and the roadbed,resulting in cracks and the like at the connected region.

[0010] There is another problem in that thickness increment of the wheelhousing and head lamp support panel for preventing the cracks and thelike only increases truck weight and manufacturing cost.

SUMMARY OF THE INVENTION

[0011] The present invention is disclosed to solve the aforementionedproblems and it is an object of the present invention to provide a captorsion preventing structure of truck constructed to prevent generationof cracks at connected area between a wheel housing and a head lampsupport panel without recourse to increase of thickness at the wheelhousing and the head lamp support panel.

[0012] In accordance with the objects of the present invention, there isprovided a cap torsion preventing structure of truck, the structureincluding a cap perpendicularly combined head lamp support panel andwheel housing, the structure comprising a reinforcing material, one sideof which being combined to an inner surface of the wheel housing and theother side being coupled to the head lamp support panel, thereby forminga closed space at a connected area between the head lamp support paneland the wheel housing for dispersion of load.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] For fuller understanding of the nature and objects of theinvention, reference should be made to the following detaileddescription taken in conjunction with the accompanying drawings inwhich:

[0014]FIG. 1 is a perspective view for illustrating a cap torsionpreventing structure of truck according to the present invention;

[0015]FIG. 2 is a perspective view for illustrating a reinforcingmaterial shown in FIG. 1;

[0016]FIG. 3 is a schematic perspective view for illustrating anarranged state of cap, floor and frame of a truck according to the priorart; and

[0017]FIG. 4 is an enlarged perspective view of “A” part in FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION

[0018]FIG. 1 is a perspective view for illustrating a cap torsionpreventing structure of truck according to the present invention andFIG. 2 is a perspective view for illustrating a reinforcing materialshown in FIG. 1, wherein the structure comprises a reinforced material1, one side of which being combined to an inner surface of a wheelhousing 53 and the other side being coupled to a head lamp support panel54, whereby forming a closed space at a connected area between the headlamp support panel 54 and the wheel housing 53 for dispersion of load.

[0019] The reinforcing material 1 is triangularly shaped such that anupper side, a left side and a right side thereof are formed with flanges2 so as to be welded with corner parts of the wheel housing 53 and thehead lamp support panel 54.

[0020] The upper side and right side of the reinforcing material flange2 are welded to an inner surface of and upper inner side of the wheelhousing 53 while the left side thereof is welded to the head lampsupport panel 54, such that a closed triangular-shaped space (C) isformed by the wheel housing 53, the head lamp support panel 54 and thereinforcing material 1.

[0021] When the closed space (C) is created by the wheel housing 53 andthe head lamp support panel 54, the load and torsional momenttransmitted from the wheel housing 53 are not directly transferred tothe connected area between the wheel housing 53 and the head lampsupport panel 54 to thereby prevent generation of cracks at theconnected area.

[0022] Particularly, the connected area between the wheel housing 53 andthe head lamp support panel 54 is increased in strength thereof by theclosed space (C) and as indicated by an arrow in FIG. 2, the load andtorsional moment transmitted to the wheel housing 53 are dispersed tothe front, rear, left and right sides thereof, thereby improving thedispersion efficiency and improving the strength at the connected area.

[0023] Now, operational effect of the present invention thus describedwill be explained.

[0024] First of all, a worker assembles the head lamp support panel 54and the wheel housing 53 to create a cap 52. When the wheel housing 53and the head lamp support panel 54 are combined, a reinforcing material1 is adhered to the connected area, where the upper surface and rightsurface of the reinforcing material flange 2 are adhered to an innersurface of the wheel housing 53 while the left surface thereof issecured to the head lamp support panel 54.

[0025] When the flange 2 of the reinforcing material 1 is abutted to thewheel housing 53 and the head lamp support panel 54, a welding operationis done thereto for combination and when the assembly of the cap 52 iscompleted, the cap 52 is mounted with parts such as cargo box, engineand the like.

[0026] When the assembly is finished, truck is run for test, wheretorsional moment generated by load of the cap 52 and shock from theroadbed is transmitted to the wheel housing 53 during the road testing.

[0027] When the load of the cap 52 and torsional moment are given to thewheel housing 53, the load and moment tend to be transmitted to the headlamp support panel 54 but instead are transmitted to the closed space(C) by the reinforcing material 1.

[0028] The load and the torsion moment transferred to the closed space(C) work as force for deforming the reinforcing material 1 but areeffectively scattered to the head lamp support panel 54 and the frontend cross member 56 such that the reinforcing material 1 is notdeformed.

[0029] In other words, the closed space (C) formed by the reinforcingmaterial 1 is resistant to a high degree to the load and the torsionalmoment, and, before the reinforcing material 1 is broken to enable thereinforcing material 1 to withstand thereto.

[0030] when the load and the torsion moment are effectively resisted, athick panel used in the prior art can be dispensed with, therebypreventing the weight of a truck from being increased.

[0031] as apparent from the foregoing, there is an advantage in the captorsion preventing structure of a truck thus described according to thepresent invention in that a reinforcing material is installed to form aclosed space at a connected area between a wheel housing and a head lampsupport panel to increase strength relative to load and torsional momentapplied to the wheel housing.

What is claimed is:
 1. A cap torsion preventing structure of truck, thestructure including a cap perpendicularly combined head lamp supportpanel and wheel housing, the structure comprising a reinforcingmaterial, one side of which being combined to an inner surface of thewheel housing and the other side being coupled to the head lamp supportpanel, thereby forming a closed space at a connected area between thehead lamp support panel and the wheel housing for dispersion of load. 2.The structure as defined in claim 1 , wherein the reinforcing materialis formed by an upper flange and a right flange combining to an innersurface and an upper inner surface of the wheel housing so as to becoupled to a connected corner part between the wheel housing and thehead lamp support panel, and is also formed by a left flange so as to becoupled to the head lamp support panel.